A calculation method of road speed limit value evaluation

A calculation method and speed limit technology, applied in geometric CAD, special data processing applications, etc., can solve problems such as harsh measurement conditions, heavy workload, and V85 data distortion

Active Publication Date: 2022-05-06
CENT SOUTH UNIV
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Problems solved by technology

This method has problems such as heavy workload in the field, harsh measurement conditions, and V85 data distortion caused by the driver's current speed limit.
[0005] In order to solve the problem that the evaluation of the current road speed limit value is not reasonable enough, adjust and optimize the road speed limit value, and improve the efficiency of urban traffic operation, the present invention proposes a system that can consider road alignment, roadside interference, speed limit, vehicle performance and driver Calculation method of evaluation of road speed limit value based on various factors such as behavior

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  • A calculation method of road speed limit value evaluation
  • A calculation method of road speed limit value evaluation
  • A calculation method of road speed limit value evaluation

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[0061] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0062] Such as figure 1 As shown, a calculation method for road speed limit evaluation, including a linear index influence module, a roadside interference module, a speed limit module, a vehicle performance module, a driver behavior module, and an integrated calculation module. A calculation method for evaluating a road speed limit value, comprising the following calculation steps: a) Outputting a linear index influence module, a roadside interference module, and a vehicle speed limit module according to an instant vehicle position k and an instantaneous speed v while driving on the road, and comprehensively simulating and calculating the driver Operate the vehicle to accelerate or decelerate at the next moment.

[0063] b) The next behavior of operating the vehicle outputs the driver's behavior module and the vehicle performance mod...

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Abstract

The invention discloses a calculation method for evaluating the speed limit value of a road, which is particularly suitable for evaluating the speed limit value of expressways, highways and urban roads. The invention includes a linear index influence module, a roadside interference module, a vehicle speed limit module, a vehicle performance module, a driver behavior module and an integrated calculation module. The calculation method of the present invention combines factors such as road alignment index, roadside interference factors, speed limit factors, vehicle performance and driver behavior, and establishes a mathematical calculation method between people-environment-vehicle speed, and only needs to calculate parameters Input into the computer to simulate the change of the driver's driving speed on the road, and obtain the result of the running speed of the road. The calculation method of the present invention provides a theoretical basis for the evaluation of the existing road speed limit value. The principle of the calculation method is simple and clear, scientific and efficient, can effectively adjust and optimize the road speed limit value, improve the efficiency of urban traffic operation, and improve the evaluation work of the road speed limit value efficiency and accuracy.

Description

[0001] manual technical field [0002] The invention relates to the technical field of road traffic design, in particular to a calculation method for evaluation of road speed limit values, which is applicable to the evaluation of speed limit values ​​of expressways, highways and urban roads. Background technique [0003] With the continuous acceleration of my country's urbanization development process, the problem of urban traffic congestion is becoming more and more serious, and the traffic efficiency of residents' travel is low. In recent years, in order to tap the potential of urban traffic, the traffic authorities of Chengdu, Chongqing and other cities have re-evaluated the speed limit values ​​of some urban roads, and adjusted and optimized the speed limit values ​​of roads according to the evaluation results. [0004] According to the "Road Traffic Signs and Markings" (GB5768-2018) specification, the road speed limit value needs to be evaluated in combination with the ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/15G06F30/18
CPCG06F30/15G06F30/18
Inventor 汪优陈宝光王振宇赵晓薇梁绍华廖艳陈义辉
Owner CENT SOUTH UNIV
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